Nonsense! IQ tests have been shown to be unreliable.
Its been shown that we only use a small porting of our brain. Until we learn to use 100% of our brain you can't claim any race has more brain power than any other. Further, we have known for many years that we can train other parts of our brains to carry on functions formerly performed by a part of the brain that has been damaged. This has resulted in the study of neuroplasty. It is covered in the book: The Brain That Changes Itself.